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3 years ago

Henry says that his set of numbers includes all integers. Iliana argues that he is wrong.

Mathematics

2 answers:

Rudiy273 years ago

5 0

B. Iliana is correct because Henry included a fraction. Fractions are not integers.

Rashid [163]3 years ago

5 0

Answer:

Step-by-step explanation:

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zysi [14]

The reflection over the y-axis has a rule:

$(x,y)\rightarrow (-x,y).$

From the diagram you can see that point W has coordinates (-7,2). Then using the rule given above, you can find the coordinates of point W':

$(-7,2)\rightarrow (7,2).$

Answer: (7,2).

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4 years ago

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A math test is worth 100 points and has 38 problems. Each problem is worth either 5 points or 2 points. How many problems of eac

Nat2105 [25]

Answer:

5 points question is 8

and 2 points questions is 30 !!

Step-by-step explanation:

Let the number of 5 points questions be x and number of the 2 points questions be y !!

Given :- The paper has 38 problems

i.e,

number of 5 points Q + number of 2point Q = 38

=> x + y = 38

=> x = 38 - y .... ( i )

And , The test worth 100 pts :-

There must be x number of Questions which carry 5 points and there must y number of questions which carries 2 points ( as assume above )

so, 5x + 2y = 100 .... ( ii )

Putting value of the x in ( ii )

5 ( 38 - y ) + 2y = 100

190 - 5y + 2y = 100

- 3y = - 90

y = 30

Putting value of y in ( i )

x = 38 - y

x = 38 - 30

x = 8

So, the Number of 5points Question is

x = 8

and , the number of 2 points questions is y = 30 !!

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Gemiola [76]

Answer:

is it never gonna give you up by official rick astley

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3 years ago

How do you do this 3n+2+8n-9=180

siniylev [52]

Combined like terms than subtract with system of equations

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Can anyone help?....

stepan [7]

The answer two this question is C.

You can get this answer by multiplying the two polynomials and then simplifying. See the steps below:
(4x^2 - 5)(x + 3) ---> Now multiply the two parenthesis.
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4x^3 + 12x^2 - 5x - 15

No simplifying can be done since there are no like terms.

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